Radeon X1600 is a middle-class GPU based on the 80nm variant of the R500 architecture. It's based on the RV516 XT Core and offers 4 Pixel Shaders, 4 TMUs and 4 ROPs, on a 128-bit of standard DDR2. The central unit runs at 635MHz and the memory clock operates at up to 400MHz. It's therefore a further clocked Radeon X1300 PRO/Radeon X1550 but should only perform slightly better although the 512MB frame buffer might prove useful in some of today's modern games. As it's not based on a Shader-Unified architecture, both DirectX 10 & 11 games aren't supported.